Hot Water Tank

The aim of the experiment was to find out how changing the mass effects the rise of the temperature of water.

Table 1: This table shows the position that the solution was at inside the graduated tube it was held in at each time interval it was measured.

11. The purpose of placing ht test tubes in a hot water bath is to stimulate the temperature of the human

designing an experiment, we have to design an experiment and we need to confirm the

Also I have made a version of the flow of the water at the lab, but believe I am missing pieces in the exact actions happening in the tanks at

Abstract: This experiment introduced the student to lab techniques and measurements. It started with measuring length. An example of this would be the length of a nickel, which is 2cm. The next part of the experiment was measuring temperature. I found that water boils around 95ºC at 6600ft. Ice also has a significant effect on the temperature of water from the tap. Ice dropped the temperature about 15ºC. Volumetric measurements were the basis of the 3rd part of the experiment. It was displayed during this experiment that a pipet holds about 4mL and that there are approximately 27 drops/mL from a short stem pipet. Part 4 introduced the student to measuring

The Lab One was done on Laboratory Techniques and Measurements. The first experiment with my Lab partner; we got opportunity to experiment how to conduct measurements in length by using metric conversion. We started in cm units and changed into mm by x10, and moving decimal point x1 to right. To find in meter we moved from cm to meter two decimal points to the left or double check our self divided by 100 and all records in data table 1. The second experiment was to measure temperature of how cold and hot tap water can be by using thermometer in Celsius units. From this experiment, gained knowledge that tab water doesn’t boil to 100 Celsius related to containing different

The next step in this lab is to rinse the Erlenmeyer flask with distilled water down the drain and then repeat the experiment, this time adding 10 ml of 0.10M KI and 10 ml of distilled water to the flask instead. The flask should again be swirling to allow the solution to succumb to the same temperature as the water bath and once it has reached the same temperature, 10 ml of 3% H2O2 must then be added and a stopper must be immediately placed on the flask and recording should then begin for experiment two. After recording the times, the Erlenmeyer flask must then be rinsed again with distilled water down the drain. After rinsing the flask, the last part of the lab can now be performed. Experiment three is performed the same way, but instead, 20 ml of 0.10 ml M KI and 5 ml of distilled water will be added and after the swirling of the flask, 5 ml of 3% H2O2 will be added. After the times have been recorded, data collection should now be complete.

The aim of the experiment will be to investigate how varying water temperatures influence the time of a chemical reaction, in this case being, a combination of Sodium Thiosulfate and Hydrochloric Acid.

There will be glass and boiling water in this experiment. For safety reasons, ONLY the instructor may pour the boiling water into its container. The container MUST be held with the thick towel provided by the instructor. If any glass is broke, inform the instructor immediately.

We prepped for the experiment by turning on the hotplate and giving it time to heat up, putting water into a large beaker, plugging the temperature Probe into the computer, placing the rubber stopper into the Erlenmeyer flask, and connecting the pressure tube into the rubber stopper. Next, we used a ring stand to lower the Erlenmeyer flask into the water

This almost eliminates the change in temperature due to the outside air because it is close to the actual temperature of the water. Overall, this lab is seen as a success to me. Our procedure used was not the most accurate, but we did understand our concepts. In fact, doing the procedure this way caused me to learn more about the subject of heat capacity. Since I was so confused over our results at first, I performed extra research to try and understand where we went wrong.

The control experiment for this investigation will be the experimental setup of 5 trials using 5oC as the temperature. All the steps in the method will be followed.

This proposal investigates the possibility of combined use of PCMs and sensible heat to improve the thermal performance of hot water tanks (HWT) hence to shift the peak power demand. And demonstrate a theoretical experiment results about comparison between the proposed system designs and the HWT without combination of PCMs.

Hot water tank is a commonly used environmental-friendly approach as a thermal energy storage (TES) system. There are three means to storage available heat energy: sensible heat storage, latent heat storage, and thermochemical storage. While in all the exiting research areas of renewable energy one of the oldest problems is the technology used for system design is not yet sufficiently economically efficient and thus prevent the replacement of fossil fuels. As a consequence, although some high heat transfer rate PCMs already been designed to used in a system which already been proven to be high efficiency, the cost of processed in industrial is still seemed not affordable compared to those present ways of burning fossil fuels.