EnerkDesign Software for HVAC

Enerk

A.H.C. van

Paassen

and

T.P. van der Stelt

Mei 2003

Enerk

• The program must be recognizable for the designer, i.e. he must have the possibility to indicate his wishes in a Mollier-diagram

• The program must be useful in early development stages

• The program must be clear and educationally justified

Objective of the program

Enerk

Program structure

Comfort and heating and cooling load calculation

Statistical processing

- Climate system- Air handling- Energy consumption

Comfort and heating and cooling load calculation

Input room and wall data

Enerk

Comfort and heating and cooling load calculation

Input room and wall data

Enerk

Enerk

Input room and wall data Input room

shading data

Comfort and heating and cooling load calculation

Enerk

Input room shading data

Enerk

Input room and wall data

Comfort and heating and cooling load calculation

Input room shading data Input room

use data

Input room use data

Enerk

Enerk

Input room and wall data

Comfort and heating and cooling load calculation

Input room shading data Input room

use data Climate data accordingshort reference year, reference year 64-65, or any other user data

Enerk

Input room and wall data

Day results

Comfort and heating and cooling load calculation

Input room shading data Input room

use data Climate data accordingshort reference year, reference year 64-65, or any other user data

Day results

Enerk

Enerk

Input room and wall data

Day results

Comfort data

Comfort and heating and cooling load calculation

Input room shading data Input room

use data Climate data accordingshort reference year, reference year 64-65, or any other user data

Comfort data

Enerk

Enerk

Input room and wall data

Day results

Comfort data

Comfort and heating and cooling load calculation

Input room shading data Input room

use data Climate data accordingshort reference year, reference year 64-65, or any other user data

Year results

Year results

Enerk

Enerk

Input room and wall data

Day results

Comfort data

Comfort and heating and cooling load calculation

Input room shading data Input room

use data Climate data accordingshort reference year, reference year 64-65, or any other user data

Solar energy

Year results

Enerk

Enerk

Program structure

Comfort and heating and cooling load calculation

Statistical processing

- Climate system- Air handling- Energy consumption

Statistical processing

Enerk

Mollier - diagram sector data

Hourly data of heating and cooling load

Output for each sector:Average in- and outside temperature and humidityAverage heating and cooling load Q+,Q–

Frequency of occurrence P+, P–

Statistical processing

Enerk

Program structure

Comfort and heating and cooling load calculation

Statistical processing

- Climate system- Air handling- Energy consumption

- Climate system- Air handling- Energy consumption

Enerk

Design with Enerk

Climate systemAir handling and control strategy

Total energy consumption

Climate system

Enerk

Climate system

Enerk

Design with Enerk

Climate systemAir handling and control strategy

Total energy consumption

Air handling and control strategy

Enerk

Design control strategy in Mollier-diagram

Add controls until supply air or other desired conditions have been met for

all situations Control steps

visible in diagram

Energy use is displayed

Enerk

Design with Enerk

Climate systemAir handling and control strategy

Total energy consumptionTotal energy consumption

Enerk

Total energy use

Enerk

Costs

Enerk

Four different situations

Jaarlijkse kosten per vertrek voor installaties en energiegebruikMiddelzwaar gebouw, orientatie zuid, glasoppervlak = 3.9 m2,

nachtvent: 420m3/h bij 3 en4, geen temp. overschrijdigen bij 1,2en 3

0

100

200

300

400

500

600

700

1 2 3 4

1=binnenzonwering; 2=buitenzonwering (regelbaar); 3=buitenzonwering en regelbaar ventilatie raam;

4=als 3 met minder comfort (100 uren T>25oC)

Eu

ro /

ve

rtre

k

energiekosten

Jaarlijksekapitaalkosteninstallaties &zonwering &raamregeling