pool-water-temperature-simulator

		Pool's Water Surface Area (m²):
		Estimate your pool's water surface area
		Pool length: (m)		Pool volume: (l)

		Average width: (m)		Average depth: (m)

		Pool's surface area:
				<<< Adjust if different

		Specific Local Effects on Water Temperature
		Select your city:

		Your local wind strength:

		Your pool's wind sheltering structures:

		Shading on pool (between 10am-4pm):*

		The colour of your pool walls and floor:

		Bubble cover usage (transparent):


		© Copyright 2024 Optex Solar Pty Ltd.

		Solar Pool Collector Modifiers
		Roof pitch (or mounted collector pitch):

		Compass direction of mounted collectors:

		Roof type and colour:

		Manual or automatic system:‡

		Depth of solar suction ports:

		Pump height for solar system:

		Size of collector area to simulate:

		Type of collector:

		Select custom solar coverage (scale by):


		© Copyright 2024 Optex Solar Pty Ltd.

		Pool Temperatures Chart (°C) vs Months of Year






















		Total Swimming Season Length (Months)
		Ave Unheated Pool			Your Pool's Season
		Heating Extension			Total Solar Season

		© Copyright 2024 Optex Solar Pty Ltd.

Heat Pump COP Adjustments
Heat pump AHRI† COP specs used:
HAHH:	HAMH:	LAMH:

Use custom heat pump AHRI† specs:

Heat pump efficiency loss in 10 years:§
	Used in calc	Custom (%)
COP loss
(used in the 10 year running cost calculations)
Finer Monthly COP Adjustments
Add to select monthly values		Using COP
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
(new unit initial COPs are shown only)
Average new heat pump COP

© Copyright 2024 Optex Solar Pty Ltd.

Adjust Solar Pump Power¥
Balance flow to see effects on pump power & collector efficiency

Solar mains pump required:


Heat removale factor
Resultant new solar COP:




Finer Max Desired Temp Adjustments
Add to select monthly values		New desired
Jan	0
Feb	0
Mar	0
Apr	0
May	0
Jun	0
Jul	0
Aug	0
Sep	0
Oct	0
Nov	0
Dec	0

© Copyright 2024 Optex Solar Pty Ltd.

Pool Temperatures Chart (°C) vs Months of Year
		.





















Total Swimming Season Length (Months)
Ave Unheated Pool	Your Pool's Season
Heating Extension	Total Solar Season

© Copyright 2024 Optex Solar Pty Ltd.


Month	Ta	Ts	Tw
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec


Month	V10	Qh	Qi	Pa
(Units)	m/s	MJ/m²d	MJ/m²d	kPa
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

© Copyright 2024 Optex Solar Pty Ltd.

Data Used for Heat Pump Calculations

Month

Ave_Temp

Td-Tw

R_Humidity

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Average Daily kWh Required

(to maintain temperature shown on chart)

Month

Solar

Heat Pump

Gas

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

		Heat Loss Calculation Factors Used
		Pool absorption factor (alpha)
		(Appendix B5, AS 3634—1989)
		Wind factor (at 0.3m)
		(Appendix B2, AS 3634—1989)

		Pool Blanket Heat Loss Corrections:
		(for 100% of the time covered pool)
		Evaporation loss scaling factor
		Convection loss scaling factor
		Radiation loss scaling factor
		Light transmittance factor

		Data Used for Solar Heating System
		Solar system flow rate (L/min)

		Data Used for Gas Heaters:
		Gas heater efficiency
		10 Year loss in gas heater efficiency

		Data Used for Pump Heaters:
		10 Year loss in heat pump efficiency

		© Copyright 2024 Optex Solar Pty Ltd.

		Energy Prices & Custom Adjustments
		Assumed gas price:
		Specify custom price (c/MJ):
		Assumed electrical costs:
		Specify custom tariff ($/kWh):
		Night tariff for heat pump:
		Night tariff adjustment: (% of Daytime)

		Day or night tariff heat pump usage:


		Financial details for cost comparison
		Interest rates:
		Anticipated fuel inflation:

		Average Yearly Running Cost Summary
		(Includes: interest, derating and inflation,
		does not include maintenance costs.)
		Solar pool heater:
		Pool heat pump:
		Gas heater:

		Solar Offset Percentage
		Offset from solar: (if installed)

		© Copyright 2024 Optex Solar Pty Ltd.