pool-water-temperature-simulator

		Pool's Water Surface Area
		Pool length: (m)

		Pool average width: (m)

		Pool's surface area:


		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):

		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):

	Pool Temperatures Chart (°C) vs Months of Year






















	Total Swimming Season Length (Months)
	Reference Season			Specifics Adj. Season
	Solar Extension			Solar Heated Season

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

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

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





















Total Swimming Season Length (Months)
Reference Season	Specifics Adj. Season
Solar Extension	Solar Heated Season

		Energy Prices & Custom Adjustments
		Assumed gas price:

		Use custom gas price: (c/MJ)


		Use custom electric tariff: ($/kWh)

		Night tariff: (for heat pump if used)

		Night tariff adjustment: (% of Daytime)

		Day or night tariff heat pump usage:


		Financial details for cost comparison
		Interest rates:

		Your tax bracket:

		Anticipated fuel source inflation:


		Note:
		A dollar saved is NOT a dollar earned
		$1 saved is actually $1.325 earned
		(depending on your tax bracket)
		These compounded costs are what you
		need to EARN to offset your financial loss

10 Year Heating Cost Comparison^

Year

Solar

Heat Pump

Gas

Show as post tax costs not wages:

Offset auxiliary heating costs with solar?

To run auxiliary heating under these

specific conditions, over 10 years you'd

need to work to EARN an extra:

for running a Heat Pump - or

for running a Gas Heater

We hope this demonstrates that while

auxiliary heaters are great for guaranteeing

a set temperature - running them as your

sole source of heating without solar

and/or a pool blanket is terrible idea

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





















Total Swimming Season Length (Months)
Reference Season	Specifics Adj. Season
Solar Extension	Solar Heated Season


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

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 2018 Optex Solar Pty Ltd. All rights reserved.

		Auxiliary Heating Efficiencies
		What heat pump efficiency† to use:

		What gas bolier efficiency to use:


		Average Yearly Running Cost Summary
		(Averaged over 10yrs, includes: interest, unit efficiency loss and energy inflation costs. Does not include: unit replacement or maintenance costs.)
		Solar pool heater (annually):

		Pool heat pump (annually):

		Gas heater (annually):


		Solar Offset Percentage
		Offset from solar: (if installed)