Refrig – Cargas de Caixas de Refrigeração

Visão global

Refrig calcula rapidamente a carga máxima de refrigeração em btu por período de 24 horas para todos os tipos de aplicações de refrigeração. A Refrig atende todos os tipos de cargas, incluindo: telhados, paredes, divisórias, pisos, produtos, contêineres, infiltração, luzes, equipamentos, pessoas, degelos, tempo de funcionamento do compressor e muito mais. Existe até previsão de um fator de segurança. Os dados meteorológicos de projeto são integrados e pesquisados ​​automaticamente em mais de 300 cidades diferentes. As cargas de produtos são facilmente acomodadas, pois o Refrig contém uma biblioteca integrada de produtos (frutas, vegetais, carnes, etc.). Tudo o que o projetista precisa fazer é inserir o nome e a quantidade do produto para obter cargas automáticas de resfriamento, congelamento, subresfriamento e respiração do produto. Após todas as cargas terem sido calculadas, o projetista pode especificar o refrigerante e o TD desejado para que uma bobina do evaporador e uma unidade condensadora apropriadas possam ser rapidamente selecionadas na biblioteca integrada de bobinas e unidades condensadoras. Refrig vem com mais de 400 bobinas e 400 unidades condensadoras de vários fabricantes, como Carrier, Krack, Witt, Russell e outros. Até 1.000 bobinas e unidades condensadoras podem ser armazenadas por fabricante.

Método de cálculo

O programa Refrig realiza cálculos de acordo com o ASHRAE Handbook of Fundamentals e o ASHRAE Refrigeration Handbook. Todos os dados necessários de produtos e materiais são consultados automaticamente. Os resultados de saída computados podem ser facilmente verificados manualmente.

Características

  • Calcula cargas totais de refrigeração em 24 horas
  • Adequado para todas as aplicações de refrigeração
  • Usa procedimentos exatos da ASHRAE
  • É responsável por todos os tipos de cargas, incluindo exterior, interna, produto, degelo, tempo de execução do compressor, etc.
  • Exibição contínua de totais de carga nas telas de entrada
  • Pesquisa automática de dados meteorológicos de projeto
  • Contém biblioteca integrada de dados de carregamento de produto
  • Inclui biblioteca integrada de bobinas e unidades condensadoras
  • Permite misturar e combinar bobinas e unidades condensadoras
  • Unidades inglesas ou métricas

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FREQUENTLY ASKED QUESTIONS

What types of loads can Refrig accommodate in its refrigeration load calculations?
Refrig can accommodate a wide range of loads, including roofs, walls, partitions, floors, products, containers, infiltration, lights, equipment, people, defrost, compressor run-time, and more. Additionally, Refrig allows for a safety factor load to be included in the calculations. This comprehensive approach ensures that all relevant loads are considered when determining the maximum refrigeration load.
How does Refrig handle product loads in its calculations?

Refrig contains a built-in library of products, including fruits, vegetables, meats, and others. To calculate product loads, the designer simply needs to enter the product name and quantity. Refrig will then automatically generate the product cooling, freezing, sub-cooling, and respiration loads. This feature simplifies the calculation process and ensures accurate results.

What is the role of design weather data in Refrig’s calculations?

Refrig has built-in design weather data for over 300 different cities, which is automatically looked up during the calculation process. This ensures that the refrigeration load calculations are based on realistic weather conditions for the specific location. The designer does not need to manually input weather data, making the process more efficient and accurate.

How does Refrig select the appropriate evaporator coil and condensing unit for a given refrigeration load?

After calculating the maximum refrigeration load, Refrig allows the designer to specify the refrigerant and temperature difference (TD) desired. Based on this input, Refrig can quickly select an appropriate evaporator coil and condensing unit from its built-in library of over 400 coils and 400 condensing units from various manufacturers. This streamlines the design process and ensures that the selected equipment is suitable for the application.

Can Refrig accommodate custom coils and condensing units not included in its built-in library?

Yes, Refrig allows up to 1,000 coils and condensing units to be stored per manufacturer. This means that designers can add custom coils and condensing units from various manufacturers to the library, making Refrig a flexible and adaptable tool for refrigeration system design.

What is the significance of the 24-hour period in Refrig’s refrigeration load calculations?

Refrig calculates the maximum refrigeration load in BTUs per 24-hour period. This is important because refrigeration systems often experience varying loads throughout the day, and the 24-hour period provides a representative average load. By calculating the maximum load over this period, Refrig ensures that the designed system can handle the peak demand and maintain optimal performance.

What is the role of design weather data in Refrig’s calculations?

Refrig has built-in design weather data for over 300 different cities, which is automatically looked up during the calculation process. This ensures that the refrigeration load calculations are based on realistic weather conditions for the specific location. The designer does not need to manually input weather data, making the process more efficient and accurate.

What is the significance of the 24-hour period in Refrig’s refrigeration load calculations?

Refrig calculates the maximum refrigeration load in BTUs per 24-hour period. This is important because refrigeration systems often experience varying loads throughout the day, and the 24-hour period provides a representative average load. By calculating the maximum load over this period, Refrig ensures that the designed system can handle the peak demand and maintain optimal performance.