Scenario: Critical thinking Real-life Problem

Jamal contributes his success as a Master Chef to his Grandma. Jamal is excited to have his Grandma, his muse come and live with him. Jamal learned how to cook by watching his Grandma cook. He remembers spending three weeks with his mother's mother during the summer. Grandma was known for cooking and having all types of good-tasting food in the refrigerator when he came to visit. Unfortunately, Grandma's attention is short and she forgets things. Jamal wanted his Grandma to continue to cook with some modifications in his home. He removed the stove and refrigerator from the kitchen and replaced these items with modern appliances. Jamal would like to equip the kitchen with a house solar battery to run a 120-volt ceiling fan with LED for 6 hours each night, an induction range, a microwave/smart oven, an electric expresso maker, and a smart refrigerator. After reading this module, Your task is to design a complete kitchen with a solar house battery to supply the power needs for Jamal's kitchen that will be reliable and economical and explain why it appears to best suit his needs. Assume that all devices may be operated simultaneously for short periods of time for maximum reliability. The kitchen remodeling must be completed and functional within a long weekend (three days). You have $15,000 to spend on the whole project. You will present your design with details in a PowerPoint format. Explain why you select each of the items in your kitchen and keep track of your cost. Here are some pertinent facts to get you started: ~Average sunlight per day during summer months = 10 hours and winter months 6 hours ~ Number of expected consecutive overcast days without full sun = 2 LED lights draw ~ 24 watts ~ Microwave/convection oven ~ Induction cooking top (2) , ~ two solar tunnels ~ Refrigerator rated at ~ 1.5 amps at 120 volts (daily power estimate = 600 watt-hours) Peak power may reach 540 watts for a moment when the compressor starts ~ Expresso maker requires a peak of 1450 watts but averages 1000 watts an hour, assume it will run for 8 minutes a day.

Sample Solution

Introduction

Jamal, a renowned chef, attributes his culinary success to his Grandma's guidance and cooking expertise. To honor his Grandma and continue her culinary legacy, Jamal invites her to live with him. However, his Grandma's memory lapses make it challenging for her to cook independently. To address this, Jamal decides to renovate his kitchen, incorporating modern appliances and a solar battery system to ensure reliable and economical power supply.

Kitchen Design and Appliance Selection

To accommodate his Grandma's needs and ensure a functional and efficient kitchen, Jamal selects the following appliances:

Full Answer Section

Induction Range: Induction cooking offers precise temperature control, enhanced safety, and energy efficiency, making it an ideal choice for Jamal's Grandma.
Microwave/Smart Oven: A combination microwave and oven provides versatility for quick meals, baking, and reheating. Smart features allow for easy operation and recipe guidance.
Electric Espresso Maker: An espresso maker adds a touch of luxury and convenience for Jamal's daily coffee routine.
Smart Refrigerator: A smart refrigerator offers advanced features like temperature monitoring, food inventory tracking, and recipe suggestions.

Solar Power System Design

To power these appliances and provide reliable electricity, Jamal installs a solar battery system comprising:

Solar Panels: Considering the average sunlight hours, Jamal installs 10 solar panels, each generating 300 watts, for a total capacity of 3 kW.
Solar Charge Controller: A solar charge controller regulates the flow of energy from the solar panels to the battery, preventing overcharging and ensuring optimal battery performance.
Solar House Battery: A 48-volt, 10 kWh solar house battery provides enough storage capacity to power the kitchen appliances for extended periods, even during overcast days.
Inverter: An inverter converts the stored DC power from the battery to AC power, which is compatible with the household appliances.

Cost Estimation

The estimated cost for the kitchen renovation and solar power system is as follows:

Induction Range: $1,500
Microwave/Smart Oven: $700
Electric Espresso Maker: $200
Smart Refrigerator: $1,000
Solar Panels (10 panels): $3,000
Solar Charge Controller: $200
Solar House Battery: $2,000
Inverter: $500
Kitchen Remodeling Labor: $3,000

Total Cost: $12,100

Why This Design Best Suits Jamal's Needs

This kitchen design and solar power system best suit Jamal's needs due to the following reasons:

Functional and User-Friendly Appliances: The selected appliances are easy to operate and offer advanced features that cater to Jamal's Grandma's needs.
Reliable and Sustainable Solar Power: The solar power system provides a reliable and sustainable source of electricity, reducing reliance on the grid and minimizing environmental impact.
Cost-Effective Solution: The total cost of the renovation and solar power system falls within Jamal's budget of $15,000.
Long-Term Benefits: The solar power system offers long-term cost savings on electricity bills and contributes to a more sustainable lifestyle.

Conclusion

The proposed kitchen renovation and solar power system provide Jamal with a functional, user-friendly kitchen that caters to his Grandma's needs while ensuring a reliable and economical electricity supply. The design aligns with Jamal's budget and offers long-term benefits, making it an ideal solution for his household.

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