Airedale OptiChill OPC 500 [26/60] Optichill chillers
Макгруп McGrp.ru
Задайте вопрос
Зарегистрироваться

Airedale OptiChill OPC 500 [26/60] Optichill chillers

Airedale OptiChill OPC 750 [26/60] Optichill chillers
OPTICHILL Chillers
Chillers
26
Installation & Maintenance : 6564868 08/2008
Installation Data
GLYCOL DATA
For a given percentage of glycol in the system there are correction factors that need to
be applied, the following tables can be used as a guide.
CAUTION
The source data must be at 100% Water for the correction factors to be valid.
Ethylene Glycol Nominal Correction Factors
Glycol in System / Freezing Point ºC 10% / -4°C 20% / -9°C 30% / -15°C 40% / -23°C
Output (kW) 0.98 0.97 0.95 0.93
Compressor Input (kW) 0.99 0.98 0.96 0.95
Water Flow (l/s) 0.99 1.02 1.04 1.07
Pressure Drop (kPa)
x
1.05 1.20 1.38 1.57
Propylene Glycol Nominal Correction Factors
Glycol in System / Freezing Point ºC 10% / -2°C 20% / -6°C 30% / -12°C 40% / -20°C
Output (kW) 0.97 0.95 0.91 0.88
Compressor Input (kW) 0.99 0.98 0.96 0.95
Water Flow (l/s) 0.98 0.97 0.95 0.95
Pressure Drop (kPa)
x
1.08 1.17 1.31 1.45
Example
Model Ref. = OPC800HE+D14
Ambient: = 35°C
Fluid = 20% Ethylene Glycol
Inlet Fluid Temp. = 7°C
Outlet Fluid Temp. = 12°C (
5°C
Δ
T)
100% Water Multiplier Corrected Figure
Output (kW) 841.2 x 0.97 = 816.0 kW
Compressor Input (kW) Input (kW) - TFP {283.1 - {14 x 1.7}} = 259.3 x 0.98 = 254.1 kW
Output
Water Flow (l/s)
4.19 x ΔT
40.2 x 1.02 = 40.8 l/s
Pressure Drop (kPa)
=
Plot from curve (refer to Waterside
pressure drop (kPa), on page 46)
33.1 x 1.20 = 39.7 kPa
Where:
Output = (kW) Output (kW), refer to
Technical Manual
Compressor Input = (kW) Input (kW) refer to
Technical Manual (-) Minus TFP
TFP
(Total Fan Power) = (kW) Quantity of Fans to unit x Fan Motor Size
Water Flow = (l/s) ALWAYS USE 100% water SHC of 4.19
ΔT = (°C) Difference of Entering Water and Leaving Water temperature
Waste glycol needs to be handled responsibly, recycled or turned over to professional
personnel for correct disposal. Most anti-freeze manufacturers recommend that used anti-
freeze be collected and disposed according to Local Legislation. Waste glycol should NOT be
drained onto the ground, rainwater drainage system or natural waters.
If the glycol contains heavy metals or other contaminants from gas or oil, the level of hazard
posed by the glycol is increased and could be characterised as hazardous waste.
STEPS IF GLYCOL IS RELEASED/SPILLED
Small spill - soak up with absorbent material.
CAUTION
Large spill - contain spill and pump to suitable container for disposal.

Содержание

Похожие устройства

Скачать