Technical data

Efficiency of the pump in the conversion of electric energy to potential energy

Article no: P9518300

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

Principle

The efficiency attained in this experiment, only 2 % to 3 %, is very low compared to that of pumps used in practice, which can reach 20 % to 90 %. This difference is mainly due to the size of the pump and, in particular and despite the small scale of it, the fact that the robustness needed for the stability of the rotor is attained at the cost of the performance.

The purpose of this experiment is to bring home the efficiency calculation.

Benefits

Experiment is part of a complete solution set with a total of 26 experiments for Renewable Energy solar cells, wind power, water power
Safe experimentation: The fan in the blower is protected against touch
The power supply used is versatile and is particularly suitable for pupil tests for all ages

Tasks

How efficiently does the pump work?

Scope of delivery

Connecting cable, 32 A, red, various lengths	07360-01	2
Connecting cable, 32 A, red, various lengths	07361-01	1
Connecting cable, 32 A, blue, various lengths	07361-04	2
Support base, separable for 2 rods	02001-00	1
Stand rods, stainless steel, various sizes	02037-00	2
Blower, 12V	05750-00	1
Generator with metrical thread axis and nut	05751-01	1
Rotor, 2 pieces	05752-01	1
Digital stopwatch, 24 h, 1/100 s and 1 s	24025-00	1
Measuring tape, l = 2 m	09936-00	1
Slide mount for optical bench	09822-00	1
Beakers, Boro, low form, various sizes	46055-00	1
Boss head	02043-00	1
clamp, d = 16 mm, with mounting rod	05764-00	1
Stand rods, stainless steel, various sizes	02031-00	1
Water pump/ water turbine/ generator	05753-00	1
Dish, plastic, 150x150x65 mm	33928-00	1
PHYWE Digital multimeter, 600V AC/DC, 10A AC/DC, 20 MΩ, 200 µF, 20 kHz, −20°C…760°C	07122-00	2
PHYWE Power supply, 230 V,DC: 0...12 V, 2 A / AC: 6 V, 12 V, 5 A	13506-93	1