Summer thermal load

Summer heat load - split system fan coils ducts

Program that allows you to very quickly establish the summer heat load (kW – kCal/h – BTU – kJ – Ton) and the necessary potential for autonomous systems, air conditioners, splits, fan coils (fan coils) and ducted systems – Calculation of the summer environmental heat load with sizing of the final units (split-type air conditioners, fan coils) It also carries out the dimensional calculation of the ducts necessary for air distribution in the case of a ducted system.

Summer heat load - split system fan coils ducts

Welcome to the “Summer heat load – split system and fan coil unit” calculation program. This tool was created by Itieffe to provide you with a practical and efficient approach to quickly calculate the summer heat load in rooms where split system and fan coil air conditioning systems are used. The sizing of the latter, and the sizing of the channels, complete the program.

Its speed of use makes it indispensable in many applications.

Accurate management of the summer heat load is crucial to ensure comfortable indoor environments and optimize the energy efficiency of cooling systems. This program will guide you through the summer heat load calculation process, enabling you to obtain accurate results and make informed decisions in the design and optimization of your systems.

With this completely free program we will be able to:

  1. Choose which unit of measurement to make the calculations with: kW – kcal/h – BTU – kJ – Ton
  2. Summer Heat Load Calculation: We will guide you through the summer heat load calculation process, including the very simplified steps, to correctly evaluate indoor heat and outdoor heat. We will use tools and formulas to determine the cooling capacity needed. The thermal load of each room will be analyzed and calculated individually.
  3. Use of the Calculation Program: detailed instructions will guide you in using the program including a brief example that will make everything clearer for you
  4. Interpretation of Results: You will learn how to interpret and use the results obtained from the calculation program to make informed decisions in the design and optimization of air conditioning systems.
  5. Ease of computation: with all the data obtained, carrying out the project metric calculation becomes extremely easy. In this regard, you can consult the specific program "Estimative metric computation” made available free of charge by Itieffe.

We are confident that this calculation program will provide you with the tools you need to deal with the summer heat load effectively and accurately. Whether you are a thermal engineering professional, a designer, a technician or a student, this program, purposely simplified, will offer you a practical aid to ensure comfortable indoor environments and meet your cooling needs in the summer months.

Summer heat load - split system fan coils ducts

Process that allows you to quickly establish the summer heat load (kW - kcal/h - BTU - kJ - Ton) and the potential required for independent systems, air conditioners, splits, fan coils (fan coils) and ducted.

Calculate the summer environmental thermal load (also suitable for the winter one) with sizing of the final units (split type air conditioners, fan coils).

It carries out the dimensional calculation of the ducts necessary for air distribution in the case of a ducted system.

Complete with detailed instructions and an example with indications of how to carry out the complete design of an environment with fan coils, with split system or with ducts.

Instructions

1 - The first thing to do is obviously the choice (1) of the unit of measurement (BTU - Kcal / h - kJ - kW - Ton).

2 - Describe the type (2) of the building (commercial - large loads - residential - offices).

3 - Give a name and to the individual rooms (3).

4 - Enter the dimensions in meters (4).

5 - Enter the exposure (6) of the single room (N - NE - NO - S - SE - SO - E - O).

6 - Enter the conformation of the upper rooms (7) (Inhabited - Floor - Insulated roof - Non-insulated roof).

7 - Enter the number of people (8) who will be stationed in the individual rooms.

8 - Indicate the heat input from the individual rooms (9).

9 - Enter the air changes supplied in the individual rooms choosing between air changes per hour or cubic meters per person (10).

Riepilogo

Now you can see the summary data.

If a refrigeration unit is present, the EER (Energy Efficiency Ratio) of the machine that will be used for the system can be entered in order to have the absorption in kW of the G. F (11).

For ducted systems there is a section (12) where to insert the machine capacity (13) and the air flow (14) at medium speed (it is mandatory to size ducted systems).

In the lower section you can see the size calculated for the use of split and if there is a system with a refrigeration unit, also of the fan coils.

In the case of calculations made for the sizing of ducted systems, once the right part of Summary data has been filled in (12), you reach the section below where for completeness, respectively:

1 - the speed of the air circulating in that section of the circuit (15);

2 - the forced side (16) of the quadrangular canalization (the remainder is calculated automatically);

3 - the chosen diameter of the circular duct (17) through which, by varying its size, the real speed of the air inside it is obtained (18).

In the program there are tables showing:

1 - Outside air per person

2 - Spare parts now

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Summer heat load - split system fan coils ducts

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