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Buffer tank heat loss

PU elements as buffer tank insulation

Table of measurement of heat loss tested on an 800l buffer tank (LMG 800 0V) with PU foam elements and leatherette cover with zip.

DaysUpper therm. (°C)Bottom therm. (°C)Average (°C)Change (°C)
1st day666264.0-
2nd day645961.5-2.5
3rd day635559.0-2.5
4th day615156.0-3.0
5th day584752.5-3.5
 
  • Enviromental temperature: (22±2)°C

Fibreglass wool as buffer tank insulation

Below are indicated measurement and derived heat losses by volume of a buffer tank using leatherette cover and 4 inches (100 mm) thick fibreglass wool.

Buffer tank volume (l)Heat loss (kWh/24h)
500 2.02
650 2.58
750 2.93
800 3.10
1000 3.82
1200 4.51
1500 5.55
2000 7.26
3000 10.69
4000 14.01
5000 17.20
 

Conditions:

  • Buffer tank temperature: (65±2)°C
  • Enviromental temperature: (20±2)°C
  • Recurrence of measure: 3 x 24 hours
 
Linszter Ltd is a Limited Company Registed in England and Wales under Company Number: 08190915.