大西熱学 List of Products and Services

Our company handles an all-weather environmental testing chamber that can recreate various weather conditions. It is used in research and development settings related to housing, home appliances, and automobiles, including studies on new technologies, new materials, and energy conservation. Not only does it replicate a natural environment, but it can also create situations where vehicles are actually in motion, allowing for highly accurate performance checks. 【Specifications (excerpt)】 ■ Temperature: -30℃ to +50℃ ■ Humidity: 20% to 80% ■ Wind speed: 0 to 30 m/s ■ Rainfall: 0 to 200 mm/h ■ Snowfall: 30 mm/h, etc. *For more details, please download the PDF or feel free to contact us.

We handle engine intake air temperature and humidity control devices. This device takes in outside air and supplies air with controlled temperature, humidity, and pressure. It is mainly used during the development and evaluation of automotive, motorcycle, and general-purpose engines. Please feel free to contact us if you have any requests. 【Specifications】 ■ Air supply volume: 6 to 50 m³/min ■ Temperature range and accuracy: 20 to 50°C (DB) ±1.0°C (DB) ■ Humidity range and accuracy: 40 to 60% (RH) ±5.0% (RH) (DP ≥ 8°C) *For more details, please download the PDF or feel free to contact us.

We offer a residential energy environment testing room that reproduces surrounding environmental conditions for comprehensive testing by installing a full-scale model house within a large environmental testing chamber. By uniformly controlling the temperature and humidity distribution in a large space, highly accurate testing is possible. According to customer requirements, we can conduct tests on comfort, performance of electrical and gas products, ventilation, airtightness, insulation, condensation, solar radiation, wind resistance, rainfall, and snowfall. 【Environmental Conditions】 ■ Dimensions: (W) 15m × (D) 16m × (H) 15m ■ Temperature: -30 to +60℃ (DB) ■ Humidity: 20 to 90% (RH) ■ Solar Radiation: 58 to 1,000W/m²h ■ Wind Speed: 4 to 50m/s ■ Rainfall: 110 to 300mm/h *For more details, please download the PDF or feel free to contact us.

We would like to introduce our "Test Equipment for Solar Cell Modules." This testing device employs a double chamber structure for the test chamber and utilizes a saturated two-fluid mixing method for humidity control. As a result, it enables the realization of a high-temperature and high-humidity environment (95°C, 95% RH) and can maintain high humidity consistently even when the temperature changes. 【Specifications】 ■ Temperature Range: -40°C to 100°C ±2.0°C ■ Humidity Range: 5 to 95% RH ±5.0% ■ Temperature and Humidity Control Range: Above 25°C ■ Effective Internal Dimensions: Custom-made to fit the size and number of modules *For more details, please download the PDF or feel free to contact us.

We offer a "Residential Energy Environment Testing Laboratory." At the Tohoku Electric Power Research and Development Center's "Hanamaru HOT LAB," we aim to develop electric heating systems for home appliances that are more comfortable and economically superior, suitable for the Tohoku region. We are establishing combinations of electric heating system patterns based on regional characteristics and housing characteristics. Data is collected on the performance, comfort, and economic efficiency of various heating devices under different weather conditions across Tohoku, and comprehensive evaluations are conducted. Please feel free to contact us when you need our services. 【Specifications】 ■ Dimensions: Approximately 14m x 12m, Height 19m ■ Temperature Range: -20℃ to +45℃ ■ Humidity Range: 40% to 90% (can be set at positive temperatures) ■ Temperature Control ・Cooling Time: +20℃ to -20℃ / within 4 hours ・Heating Time: +15℃ to +45℃ / within 4 hours *For more details, please download the PDF or feel free to contact us.

The "real vehicle environmental wind tunnel facility" is equipment that reproduces the environment during actual vehicle operation and tests the performance of car air conditioning systems and various components. By controlling and combining factors such as temperature, humidity, speed, and solar radiation, tests can be conducted under various environmental conditions. Please feel free to contact us when you need assistance. 【Specifications】 ■ Temperature range: -40℃ to +60℃ ■ Humidity range: 30 to 90% RH ■ Vehicle wind speed: 0 to 160 km/h ■ Solar radiation: 0 to 1200 W/m² (EPA standard compliant) ■ Rain/snow: Optional *For more details, please download the PDF or feel free to contact us.

We would like to introduce our "Flexible Chamber." This testing device is a flexible unit that can process the chamber (test tank) according to the shape of its components and supply temperature-controlled air. Additionally, to make effective use of the testing space, the chamber and air supply unit can be installed separately, allowing temperature-controlled air to be supplied via ducts. It is mainly used during the development and evaluation of automotive engines (HV, EV). 【Specifications (partial)】 ■ Temperature range: -50 to 150℃ ■ Temperature accuracy: ±0.5℃ ■ Temperature drop time: 30 to -40℃ within 120 minutes (no load) ■ Temperature control ・ Cooling time: +20℃ to -20℃ within 4 hours ・ Heating time: +15℃ to +45℃ within 4 hours *For more details, please download the PDF or feel free to contact us.

The "Human Body Environment Testing Room" is a laboratory that investigates the physiological effects of thermal and electromagnetic environments on the human body. By controlling elements such as temperature, humidity, radiant heat, and illuminance, the laboratory recreates residential and office building environments. It is utilized for research aimed at enhancing living environments and lifestyles. Please feel free to contact us if you have any inquiries. 【Specifications (partial)】 <Indoor Environment Room> ■ Temperature range: 0°C to 40°C ±0.5°C ■ Humidity range: 30% to 90% RH ±3.0% ■ Illuminance device: 0 to 10,000 Lx ■ Radiation device: Floor and wall surfaces *For more details, please download the PDF or feel free to contact us.

The "Car Air Conditioning Anechoic Chamber" is an evaluation testing room for car noise, vibration, and unpleasant sounds. This chamber is used for measuring the noise of car air conditioning systems in actual vehicles, allowing for noise measurements inside and outside the car under conditions close to real driving situations by managing indoor temperature, humidity, and wind speed, temperature, and humidity using a front wind speed device. Additionally, a compressor drive unit (with variable speed and a three-dimensional positioning device) stored in the pit under the chamber allows the car air conditioning system to operate even when the engine is off, enabling noise measurements of the air conditioning unit without interference from engine noise. 【Features】 - Sound insulation provided by a concrete structure, and the interior is lined with sound-absorbing materials. The soundproofing of circulating air is achieved through low-speed ducts and silencers. - The solar radiation device installed in the ceiling uses metal halide lamps with spectral energy distribution characteristics that meet EPA standards. *For more details, please download the PDF or feel free to contact us.

The "Thermal Shock Test Equipment" repeatedly exposes test items to high and low temperatures in a short period to evaluate their durability and lifespan. There are several methods for switching between high and low temperatures, including moving test items, stationary test items with damper switching, and liquid tank test item moving methods. Please feel free to contact us when you need assistance. 【Features】 <Moving Test Item> ■ Can reduce the load, thus shortening the recovery time ■ Requires two tanks, resulting in a larger equipment size <Stationary Test Item with Damper Switching> ■ Increased load leads to longer recovery time ■ Only one tank is needed, resulting in a smaller equipment size *For more details, please download the PDF or feel free to contact us.

We would like to introduce our "Large Constant Temperature Air Conditioning" system. This air conditioning equipment is designed to maintain a constant temperature in spacious environments, such as assembly production factories for precision instruments and precision machining machines. Please feel free to contact us when you need assistance. 【Specifications】 ■ Dimensions: 35m × 35m, Height 11m ■ Vertical Temperature Distribution: 20℃ ±2℃ ■ Horizontal Temperature Distribution: 20℃ ±2℃ *For more details, please download the PDF or feel free to contact us.

The "Real Vehicle Vibration Environment Chamber" is a facility capable of measuring noise during environmental and vibration testing of automobiles. To achieve high and low humidity environments, sound-absorbing materials are finished with moisture-proof sheets, and condensation prevention insulation sheets are installed on the movable parts of the vibration machine. To prevent condensation in the vibration machine pit and leakage from the movable parts of the vibration machine, dry air is introduced into the vibration machine pit. 【Features】 ■ Vehicle interior and absorber cooling and heating system ■ Special vibration machine opening cover system *For more details, please download the PDF or feel free to contact us.

We would like to introduce our "Constant Temperature and Humidity Chamber." This is a representative testing device that can control temperature and humidity, widely used for testing various products. We can manufacture models ranging from small ones that fit the test items to large types that allow operators to enter the testing chamber, as well as specifications that accommodate high temperature and high humidity, low humidity conditions, and even explosion-proof measures. 【Specifications (partial)】 ■ Temperature range: -70 to 150℃ ■ Temperature accuracy: ±0.5℃ ■ Temperature distribution: ±1.0℃ ■ Humidity range: 20 to 98% RH ■ Humidity accuracy: ±5.0% ■ Effective internal dimensions: Customized to fit the test items *For more details, please download the PDF or feel free to contact us.

We offer "anechoic and soundproof rooms." The temperature range is 7°C to 43°C, and the humidity range is 30% to 85% RH, with indoor noise levels below 16 dB (A). These rooms are used for noise evaluation tests of home appliances and other products. Please feel free to contact us if you have any inquiries. 【Specifications】 ■ Temperature range: 7°C to 43°C ■ Humidity range: 30% to 85% RH ■ Indoor noise: below 16 dB (A) *For more details, please download the PDF or feel free to contact us.

We would like to introduce our "Constant Temperature and Humidity Chamber for Vibration Testing." This is a type of combined testing equipment that allows for testing in environments close to actual usage, where temperature and humidity can be applied simultaneously with vibration (in both horizontal and vertical directions), which has been increasingly in demand year by year. We can also manufacture testing equipment that can apply loads such as rotation and twisting in addition to vibration. 【Specifications (partial)】 ■ Temperature range: -60 to 150℃ ■ Temperature accuracy: ±0.5℃ ■ Temperature distribution: ±3.0℃ ■ Humidity range: 20 to 98% RH ■ Humidity accuracy: ±5.0% RH, DP above 8℃, DB below 85℃ *For more details, please download the PDF or feel free to contact us.

The "Ventilation Simulation Facility" is a wind tunnel designed to measure and evaluate the ventilation characteristics of buildings. Inside, there is an experimental space (model house) and a turntable system to adjust the wind and angles, enabling detailed research on airflow inside and outside the building. Please feel free to contact us when you need assistance. 【Specifications (partial)】 ■ Wind speed: 1m to 5m/s ■ Wind speed distribution: ±5.0% or less ■ Turbulence intensity: ±10% or less ■ Nozzle dimensions: 9500W × 5000H ■ Temperature: Room temperature to 25°C or less *For more details, please download the PDF or feel free to contact us.

The "Cryogenic Heat Treatment (Sub-Zero) Device" is a machine used for low-temperature quenching heat treatment of steel materials and steel products. The low-temperature state is created using mechanical cooling with a refrigeration unit, without the use of nitrogen, which helps reduce running costs. It has a wide range of applications and is used in various fields of steel products. 【Features】 ■ Temperature range: -75 to 100℃ ■ Temperature accuracy: ±1.0℃ ■ Temperature distribution: ±3.0℃ ■ Product input method: Conveyor type / Manual type ■ Tank size: Custom-made to fit the size of the products being processed *For more details, please download the PDF or feel free to contact us.

The "Compressor Durability Testing Device" is a device used for conducting durability tests on compressors for refrigerators, room air conditioners, and car air conditioners. It sets various environmental conditions for the tested compressor and conducts tests. Data extraction can be performed through settings for high and low temperatures, humidity, and rapid acceleration and deceleration tests (sweep tests). Additionally, it can test multiple compressors simultaneously. 【Specifications】 ■ Rotational speed: 500–13,000 rpm ■ Temperature - Compressor: -40 to +150℃ - Condenser: -40 to +60℃ - Evaporator: -40 to +60℃ ■ Humidity: 30–80% RH *For more details, please download the PDF or feel free to contact us.

The "Leak Test Chamber" is a device used to measure the amount of refrigerant leakage from test samples (mainly automotive air conditioning systems). To measure the leakage amount, the chamber must maintain high airtightness. Therefore, this device features a double-door design to enhance the reliability of measurement accuracy. Please feel free to contact us when you need assistance. 【Specifications】 ■ Reproducibility accuracy: 1% or less ■ Testing standards - JIS B8615-1: 1999 - JIS B8615-2: 1999 - ISO 5151: 1999 *For more details, please download the PDF or feel free to contact us.

The "Air Conditioner Environmental Testing Room" is a testing facility equipped with a model house. It features one of the largest testing rooms in the air conditioning industry (equivalent to 21 tatami mats), designed for testing the indoor units of air conditioners installed in the model house and the outdoor units installed in the environmental testing room. The size of the model house is set at 21 tatami mats, and it can be adjusted from 6 tatami mats to 8, 10, 12, 14, 16, and 21 tatami mats by moving partition panels. 【Features】 ■ One of the largest environmental testing rooms in the air conditioning industry ■ Designed for testing the indoor units of air conditioners installed in the model house and the outdoor units installed in the environmental testing room ■ The roof is made of insulated panels for the testing room ceiling *For more details, please download the PDF or feel free to contact us.

We would like to introduce our "Residential Environmental Testing Laboratory." The "Residential Performance Testing Environmental Laboratory" is designed for researching the performance of homes, featuring tests conducted on a full-scale two-story model house. It can simulate various weather conditions throughout the year and allows for complex program operations including temperature and humidity tests, solar radiation tests, localized wind and rain tests, and ventilation tests. Additionally, we have a "Solar Heat Gain Measurement Device" composed of a solar simulator, a constant temperature room, and measurement boxes. 【Specifications (partial)】 ■ Room dimensions: W13,750 × D15,400 × H14,750 mm ■ Temperature: -30℃ to +60℃ ■ Humidity: 30% to 90% RH ■ Ventilation capacity: MAX 9,000 m³/H *For more details, please download the PDF or feel free to contact us.

We would like to introduce our "LLC Oil Temperature Control Device." It maintains the engine coolant (LLC) and oil (OIL) at a set temperature according to the load variation. The control system adds a multi-point PID system to the conventional feedback control. Additionally, there is a system that performs predictive control by inputting the operating signals from the test program side, allowing it to respond to various load changes. 【Features】 ■ Maintains engine coolant (LLC) and oil (OIL) at a set temperature according to load variation ■ Adds a multi-point PID system to the conventional feedback control ■ Responds to various load changes *For more details, please download the PDF or feel free to contact us.